I really like VotW on Tyrannical. The trash is split between the beginning and end so it feels like a boss rush going from Inquisitor to Ashgolm and Gazer.
I also did a 15 HoV last night which I thought was more fun than it was challenging, volcanic is always a fun mechanic to keep you on your toes and fighting the 4 Valajar Kings is super difficult on fortified, which makes it more like a boss than the bosses are. Despite the long time it took to do I enjoyed it.